Before it premieres the 2017 edition of its annual “Jingle” holiday extravaganza Dec. 9 and 10, the 200-strong San Diego Gay Men’s Chorus will perform a 50-minute version Saturday at Sycuan Casino. The 21-and-up show at Sycuan will include singing nuns, toy soldiers and hula dancers. The ensemble then takes its show back to San Diego’s Balboa Theatre the next weekend for its full show. New this year: the world-premiere arrangement of “You Will Be Found” for men’s chorus from this year’s Tony Award-winning musical “Dear Evan Hansen.”